MCQ
Hydrogen can be put in halogen group because
- AIt has deuterium and tritium as isotopes
- ✓It forms hydrides like chlorides
- CIt contains one electron only
- DIt is light
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(Given : Atomic masses: $C$ : $12.0\, u$, $H : 1.0\, u , N : 14.0\, u , Br : 80.0\, u ]$
Reason : Half-filled s orbital has greater stability.